Back to jobs
New

Research Associate, Molecular Biology

Dallas, TX

An affiliate of Colossal is seeking a motivated and detail-oriented Research Associate to join our interdisciplinary team at the intersection of molecular and developmental biology. This role offers the opportunity to work closely with scientists developing cutting-edge approaches to drive novel applications in the modification of phenotypes in avians. The successful candidate will support ongoing research projects by performing a range of cellular and tissue-based assays, including in situ hybridization, flow cytometry, histology, and immunofluorescence staining. 

This role is based in Dallas, TX. Relocation assistance is available.

Duties and Responsibilities

  • Collaborate with developmental biologists to analyze gene expression and function across different developmental stages.
  • Perform in situ hybridization (ISH) to localize and quantify RNA/DNA targets in tissue and whole embryo samples
  • Prepare and process tissue samples for histology, including sectioning, fixation, and staining (H&E and special stains)
  • Perform immunofluorescence (IF) staining and support imaging/microscopy workflows
  • Conduct flow cytometry experiments, including sample preparation, staining panel setup, data acquisition, and basic analysis
  • Screen constructs in developing avian embryos to quantify expression patterns.
  • Produce transfection reagents to aid experimental workflows.
  • Analyze and interpret experimental data, providing recommendations to guide project direction.
  • Participate in meetings, generate reports, and present findings to ensure alignment with project milestones.
  • Maintain accurate, detailed laboratory records and demonstrate strong organizational skills.

Required Skills and Qualifications

  • Bachelor’s degree (B.S./B.A.) in molecular biology, or a related life science field with 1 or more years of hands-on research experience in industry or academic research labs.
  • Hands-on experience in molecular cloning, plasmid construction, and plasmid preparation (mini-, midi-, and maxi-prep).
  • Demonstrated hands-on experience with at least two of the following: microscopy (confocal and/or lightsheet), in situ hybridization, flow cytometry, histology, immunofluorescence staining, (experience with all four strongly preferred)
  • Skilled in PCR primer design and PCR optimization/troubleshooting.
  • Strong organizational skills with the ability to manage multiple projects simultaneously and meet deadlines.
  • Excellent written and oral communication skills, with demonstrated problem-solving abilities.

Preferred Skills and Abilities

  • Experience handling vertebrate embryos.
  • Familiarity with microscopy/imaging software (e.g., Imaris, ImageJ or similar)
  • Experience with transfection reagents (i.e. lipofectamine or electroporation)
  • Familiarity with high-throughput automation platforms for molecular biology workflows.

What Colossal Offers Full-Time Employees:

  • Medical, dental, and vision coverage
  • Excellent paid time off and company holidays so you can rest and recharge 
  • Flexible spending accounts (FSA)
  • Company matched 401k retirement plan
  • Paid parental leave at 100% salary for up to 12 weeks
  • Education reimbursement 
  • An opportunity to help us return the Earth to a healthier state

The team at Colossal is committed, colorful, passionate, intelligent, collaborative, creative, experienced, scientific and world-class. That sounds like a lot to fit into one building. That’s why we are spread out in several locations that include laboratories, test facilities, academic institutions, libraries and offices. 

Through it all, however, we maintain a culture of positivity, hope, happiness and belief that we’re doing something big. Something Colossal.

Colossal is proud to be an equal employment opportunity workplace. We welcome people from all backgrounds as well as celebrate and support diversity. We are committed to providing an inclusive environment of mutual respect that is free from discrimination and harassment so everyone can thrive. 

EEO is the Law 

Search Firm Representatives: Colossal does not accept unsolicited assistance from search firms. No fees will be paid for a hired candidate where no pre-existing agreement is in place. We handle most recruitment in-house. 

Colossal is proud to be named a Best Place to Work by BuiltIn for 4 years in a row across multiple categories in 2023, 2024, 2025, and 2026:

  • #1 on the 50 Best Startups to Work For in Dallas in 2023!
  • 100 Best Midsize Places to Work in Dallas in 2024 & 2025
  • 100 Best Places to Work in Dallas, TX (All Size Employers) in 2024, 2025, and 2026.

Built In 2026 Award Lists

Great Place to Work Certification Page

Most Loved Workplace Certification Page - Proud to be certified as a most loved workplace including: most loved CEO, most loved workplaces for LGBTQ+, most loved workplaces for women, and most loved workplaces for young professionals.

Newsweek's Most Loved Workplaces 2024 Award List - Excited to be amongst the winners of Newsweek's 2024 Most Loved Workplaces! 

              

 

Apply for this job

*

indicates a required field

Resume/CV*

Accepted file types: pdf, doc, docx, txt, rtf

Cover Letter

Accepted file types: pdf, doc, docx, txt, rtf

Select...
Select...
Select...

Voluntary Self-Identification

For government reporting purposes, we ask candidates to respond to the below self-identification survey. Completion of the form is entirely voluntary. Whatever your decision, it will not be considered in the hiring process or thereafter. Any information that you do provide will be recorded and maintained in a confidential file.

As set forth in Colossal Biosciences’s Equal Employment Opportunity policy, we do not discriminate on the basis of any protected group status under any applicable law.

Select...
Select...
Race & Ethnicity Definitions

If you believe you belong to any of the categories of protected veterans listed below, please indicate by making the appropriate selection. As a government contractor subject to the Vietnam Era Veterans Readjustment Assistance Act (VEVRAA), we request this information in order to measure the effectiveness of the outreach and positive recruitment efforts we undertake pursuant to VEVRAA. Classification of protected categories is as follows:

A "disabled veteran" is one of the following: a veteran of the U.S. military, ground, naval or air service who is entitled to compensation (or who but for the receipt of military retired pay would be entitled to compensation) under laws administered by the Secretary of Veterans Affairs; or a person who was discharged or released from active duty because of a service-connected disability.

A "recently separated veteran" means any veteran during the three-year period beginning on the date of such veteran's discharge or release from active duty in the U.S. military, ground, naval, or air service.

An "active duty wartime or campaign badge veteran" means a veteran who served on active duty in the U.S. military, ground, naval or air service during a war, or in a campaign or expedition for which a campaign badge has been authorized under the laws administered by the Department of Defense.

An "Armed forces service medal veteran" means a veteran who, while serving on active duty in the U.S. military, ground, naval or air service, participated in a United States military operation for which an Armed Forces service medal was awarded pursuant to Executive Order 12985.

Select...

Voluntary Self-Identification of Disability

Form CC-305
Page 1 of 1
OMB Control Number 1250-0005
Expires 04/30/2026

Why are you being asked to complete this form?

We are a federal contractor or subcontractor. The law requires us to provide equal employment opportunity to qualified people with disabilities. We have a goal of having at least 7% of our workers as people with disabilities. The law says we must measure our progress towards this goal. To do this, we must ask applicants and employees if they have a disability or have ever had one. People can become disabled, so we need to ask this question at least every five years.

Completing this form is voluntary, and we hope that you will choose to do so. Your answer is confidential. No one who makes hiring decisions will see it. Your decision to complete the form and your answer will not harm you in any way. If you want to learn more about the law or this form, visit the U.S. Department of Labor’s Office of Federal Contract Compliance Programs (OFCCP) website at www.dol.gov/ofccp.

How do you know if you have a disability?

A disability is a condition that substantially limits one or more of your “major life activities.” If you have or have ever had such a condition, you are a person with a disability. Disabilities include, but are not limited to:

  • Alcohol or other substance use disorder (not currently using drugs illegally)
  • Autoimmune disorder, for example, lupus, fibromyalgia, rheumatoid arthritis, HIV/AIDS
  • Blind or low vision
  • Cancer (past or present)
  • Cardiovascular or heart disease
  • Celiac disease
  • Cerebral palsy
  • Deaf or serious difficulty hearing
  • Diabetes
  • Disfigurement, for example, disfigurement caused by burns, wounds, accidents, or congenital disorders
  • Epilepsy or other seizure disorder
  • Gastrointestinal disorders, for example, Crohn's Disease, irritable bowel syndrome
  • Intellectual or developmental disability
  • Mental health conditions, for example, depression, bipolar disorder, anxiety disorder, schizophrenia, PTSD
  • Missing limbs or partially missing limbs
  • Mobility impairment, benefiting from the use of a wheelchair, scooter, walker, leg brace(s) and/or other supports
  • Nervous system condition, for example, migraine headaches, Parkinson’s disease, multiple sclerosis (MS)
  • Neurodivergence, for example, attention-deficit/hyperactivity disorder (ADHD), autism spectrum disorder, dyslexia, dyspraxia, other learning disabilities
  • Partial or complete paralysis (any cause)
  • Pulmonary or respiratory conditions, for example, tuberculosis, asthma, emphysema
  • Short stature (dwarfism)
  • Traumatic brain injury
Select...

PUBLIC BURDEN STATEMENT: According to the Paperwork Reduction Act of 1995 no persons are required to respond to a collection of information unless such collection displays a valid OMB control number. This survey should take about 5 minutes to complete.